David s



D. S. PORTER. Buttons.

No. 230,814. Patented Aug. 3,1880.

Wz'lnawea: f n w en for:

;% I AM Q9 flay awjl N. PETE-RS, PHDTO-LITHOGRAPHER. WASHINGTON. DV 0.

UNITED STATES PATENT rEicE.

DAVID S. PORTER. OF DAVENPORT, NEW YORK.

BUTTON.v

SPECIFICATION forming part of Letters Patent No. 230,814, dated August3, 1880,

Application filed December 22, 1879.

To all whom it may concern:

Be it known that I, DAVID S. PORTER, of Davenport, Delaware county, inthe State of New York, am the inventor of an Improved Fastening forButtons, of which the following is a full, clear, and exact description,reference being bad to the accompanying drawings, forming part of thisspecification.

My invention consists in the combination of devices, hereinafterparticularly described, and more at length recited in the claim, wherebythe button may be readily and conveniently attached to or detached froma shank mounted on a suitable plate, as specified.

Figure l is a side elevation of a buttont'astening embodying myinvention, showing the parts detached from each other. Fig. 2 shows anunder-face plan of the button and a top View of the shank and its plate.Fig. 3 is a plan of my button-fastening, the top of the button beingremoved and disclosing the parts in position when the button and shankare attached together or united, but before the shank is turned orsprung into place to lock it to the button. Fig. 4 is a similar view ofthe same parts, but showing the shank turned or sprung into a lockedposition in the button; and Fig. 5 is a vertical central sectional viewof my device, showing the shank locked to the button.

A is a plate or disk. On this disk or plate, and rising from it inpreferably a central position, is the post or shank B. This post isformed so that the diameter of its cross-section is greater in onedirection than in any other, as shown, and the said post is thereforemade lozenge shape in its cross-section. I find it preferable to employthe lozenge shape. Upon the upper end of this post or shank is formedthe head I), which projects beyond the edges or sides of said post, uponeither side of the post on the line of its greatest diameter, as seen at1).

Upon the under face of the button D is placed the spring-loop or lockingdevice 0. This is composed of a strip of suitable metal bent into theform of a loop, as shown, and

with its free ends brought together and united. The center of this loopis bent outwardly upon each side, as shown at 0, so that a recess isthere formed in the loop, which corresponds in outline to the outline ofthe shank when the latter is placed in the loop with its line ofgreatest diameter crosswise or at right angles to the length of theloop. This loop is fastened to the under side of the button, which maybe done by soldering its edge to the button.

In operating the devices described, the shank is introduced into theloop in the position shown in Figs. 1 and 3that is, with the line of thegreatest diameter of the shank parallel to the length of the loop. Inorder to permit the shank to be turned in the loop, the walls of theloop immediately below the under face of the button are slotted, as seenat 0. hen the shank is turned in the loop the projecting ends of thecross-head I; pass through these slots 0, while at the same time, theloop not being continuous or united to the button at these slots, thesaid loop at its portion 0 will act as a spring when pressed upon by theedges of the shank on the opposite sides of the greatest diameterthereof, and will thus permit said edges to pass when the shank isturned, and will then close or spring down upon the shank again when ithas been turned into the position shown in Figs. 4 and 5.

It is evident that when the shank has been turned and sprung into theposition shown in Figs. 4 and 5 the button and shank will be lockedtogether, and that to detach the button it is only necessary to turn theshank the reverse way in the recess 0, when it may be withdrawn and thebutton detached.

The devices I have shown and described are specially applicable tocollar and cuff or sleeve buttons.

By the use of the loop 0, of the peculiar construction shown, the buttonis held steadily in position in a long button-hole, and the recess 0 inthe loop 0, acting on the corners of the lozenge-shaped shank'B, holdssaid shank perpendicular to the button and prevents it from turningtherein, thus keeping the button and disk always fastened together andtheir faces parallel.

What I claim as my invention, and desire to secure by Letters Patent, is

The button D, provided with the elongated hollow spring-shank 0, havingan enlarged central part of substantially lozenge shape, and also havingslots 0, in combination with the shoe or disk A, having thelozenge-shaped 1o shank B and T-head, whereby said head is preventedfrom accidentally turning in the loop or bed, substantially asdescribed, and for the purpose set forth.

DAVID S. PORTER. Witnesses:

G. H. GRAHAM, O. GURNEY.

